LXR linux/arch/mips/kernel/proc.c

   1/*
   2 *  linux/arch/mips/kernel/proc.c
   3 *
   4 *  Copyright (C) 1995, 1996, 2001  Ralf Baechle
   5 *  Copyright (C) 2001, 2004  MIPS Technologies, Inc.
   6 *  Copyright (C) 2004  Maciej W. Rozycki
   7 */
   8#include <linux/delay.h>
   9#include <linux/kernel.h>
  10#include <linux/sched.h>
  11#include <linux/seq_file.h>
  12#include <asm/bootinfo.h>
  13#include <asm/cpu.h>
  14#include <asm/cpu-features.h>
  15#include <asm/mipsregs.h>
  16#include <asm/processor.h>
  17
  18unsigned int vced_count, vcei_count;
  19
  20static int show_cpuinfo(struct seq_file *m, void *v)
  21{
  22        unsigned long n = (unsigned long) v - 1;
  23        unsigned int version = cpu_data[n].processor_id;
  24        unsigned int fp_vers = cpu_data[n].fpu_id;
  25        char fmt [64];
  26        int i;
  27
  28#ifdef CONFIG_SMP
  29        if (!cpu_isset(n, cpu_online_map))
  30                return 0;
  31#endif
  32
  33        /*
  34         * For the first processor also print the system type
  35         */
  36        if (n == 0)
  37                seq_printf(m, "system type\t\t: %s\n", get_system_type());
  38
  39        seq_printf(m, "processor\t\t: %ld\n", n);
  40        sprintf(fmt, "cpu model\t\t: %%s V%%d.%%d%s\n",
  41                cpu_data[n].options & MIPS_CPU_FPU ? "  FPU V%d.%d" : "");
  42        seq_printf(m, fmt, __cpu_name[n],
  43                                   (version >> 4) & 0x0f, version & 0x0f,
  44                                   (fp_vers >> 4) & 0x0f, fp_vers & 0x0f);
  45        seq_printf(m, "BogoMIPS\t\t: %u.%02u\n",
  46                      cpu_data[n].udelay_val / (500000/HZ),
  47                      (cpu_data[n].udelay_val / (5000/HZ)) % 100);
  48        seq_printf(m, "wait instruction\t: %s\n", cpu_wait ? "yes" : "no");
  49        seq_printf(m, "microsecond timers\t: %s\n",
  50                      cpu_has_counter ? "yes" : "no");
  51        seq_printf(m, "tlb_entries\t\t: %d\n", cpu_data[n].tlbsize);
  52        seq_printf(m, "extra interrupt vector\t: %s\n",
  53                      cpu_has_divec ? "yes" : "no");
  54        seq_printf(m, "hardware watchpoint\t: %s",
  55                   cpu_has_watch ? "yes, " : "no\n");
  56        if (cpu_has_watch) {
  57                seq_printf(m, "count: %d, address/irw mask: [",
  58                           cpu_data[n].watch_reg_count);
  59                for (i = 0; i < cpu_data[n].watch_reg_count; i++)
  60                        seq_printf(m, "%s0x%04x", i ? ", " : "" ,
  61                                   cpu_data[n].watch_reg_masks[i]);
  62                seq_printf(m, "]\n");
  63        }
  64        seq_printf(m, "ASEs implemented\t:%s%s%s%s%s%s\n",
  65                      cpu_has_mips16 ? " mips16" : "",
  66                      cpu_has_mdmx ? " mdmx" : "",
  67                      cpu_has_mips3d ? " mips3d" : "",
  68                      cpu_has_smartmips ? " smartmips" : "",
  69                      cpu_has_dsp ? " dsp" : "",
  70                      cpu_has_mipsmt ? " mt" : ""
  71                );
  72        seq_printf(m, "shadow register sets\t: %d\n",
  73                       cpu_data[n].srsets);
  74        seq_printf(m, "core\t\t\t: %d\n", cpu_data[n].core);
  75
  76        sprintf(fmt, "VCE%%c exceptions\t\t: %s\n",
  77                cpu_has_vce ? "%u" : "not available");
  78        seq_printf(m, fmt, 'D', vced_count);
  79        seq_printf(m, fmt, 'I', vcei_count);
  80        seq_printf(m, "\n");
  81
  82        return 0;
  83}
  84
  85static void *c_start(struct seq_file *m, loff_t *pos)
  86{
  87        unsigned long i = *pos;
  88
  89        return i < NR_CPUS ? (void *) (i + 1) : NULL;
  90}
  91
  92static void *c_next(struct seq_file *m, void *v, loff_t *pos)
  93{
  94        ++*pos;
  95        return c_start(m, pos);
  96}
  97
  98static void c_stop(struct seq_file *m, void *v)
  99{
 100}
 101
 102const struct seq_operations cpuinfo_op = {
 103        .start  = c_start,
 104        .next   = c_next,
 105        .stop   = c_stop,
 106        .show   = show_cpuinfo,
 107};
 108